The Nets never made an appearance in Boston’s 100-75 cakewalk in Newark. They shot below 40 percent for a second straight game, unloaded their lowest point total of the season and were mauled on the backboards by 13.

And those were pretty much their strong points. All the fight they often show?

“There was none. In no area,” admitted coach Avery Johnson.

“I don’t know if it was the 1 o’clock start or what, but they [the Celtics] had loads more energy, effort,” said Brook Lopez, who was intent on rebounding (he had five in the first quarter, six for the game in 21 minutes) after his backboard disaster in Charlotte.

“They got a lot of easy ones in the paint. We struggled to get easy ones like that.”

Sources close to the court maintained the Celtics (16-4), playing without Rajon Rondo (hamstring) then sitting Shaquille O’Neal (sore right calf) after halftime, almost broke a sweat in the second half in dealing the Nets their worst beating of the season. Nate Robinson filled in for Rondo and scored 21 points.

“When I shoot, I feel I can make every shot,” Robinson said. “I feel like I can’t be stopped.”

The Nets stopped no one yesterday, not Robinson, Glen Davis (16 points), Kevin Garnett (13 points, 14 rebounds). And the offense wasn’t exactly perky, even with Devin Harris (left knee strain) back from a two-game absence.

“It’s not broken. We missed a ton of shots, were turnover-prone (19 total, seven in the disastrous second quarter), but we’ve had spurts where we didn’t score,” said Harris (seven points, 24 minutes).

This came after Johnson praised the Nets’ performance beyond the record over the first 20 games. The Nets were coming off defeats that arrived in triple overtime and then overtime, and Johnson stressed how they never quit.

Hey, if they ever tried to make this abomination go beyond regulation, the 16,196 in attendance might have revolted, instead of just being revolted.

No Nets starter played more than 24 minutes, and only Anthony Morrow (10 points) among the first five scored double figures. So the losing streak hit four — and that’s with Atlanta and Dallas on the road, then the Lakers at home coming next.

This was over in the second quarter. After sticking within two points of the Celts in the first, the Nets were outscored, 26-6, in a turnover-laced 8:56 stretch. They managed six points in the final :54.3 of the half before Davis nailed a transition 3-pointer at the buzzer.

The Celtics simply were disinterested after that, the Nets utterly uninteresting.

“Just a terrible second quarter,” Johnson said. “They jumped all over us in the second quarter and we never recovered.